You use 2 range finders? My god, how slow are you? I have a feeling that AFTER analyzing your yardage you then pull 3 clubs from the bag, take a practice swing with each, pausing to visualize the shot, then decide which club, put the other two back, then go through your excruciating pre shot routine, finally hit your shot, 7 minutes after getting to your ball. I've unfortunately been with guys who utilize multiple devices and honestly they take WAY to long. Use 1 device, trust it and shoot to the middle of the green. I've had both and love my Garmin S60 watch. Front, center, rear. All I need. Glance at watch, grab a club, lock and load.....